find control from usercontrol i my masterpage?

Posted on 2011-10-04
Medium Priority
Last Modified: 2012-05-12

I have:
Content page
Master page
usercontrol loaded on master page including liAmount

From content page, I want to change liAmount in my usercontrol at my masterpage.

How is this possible.

It would make sense if following would work;
((Literal)BasketAmount.Master.FindControl("liAmount")).Text = "1";
Question by:Jesper Christensen
  • 2
LVL 17

Accepted Solution

Carlos Villegas earned 2000 total points
ID: 36913471
Hello, in this way, follow this example:

<%@ Control Language="C#" ClassName="MyUserControl" %>
<script runat="server">
<asp:Label Text="text" runat="server" ID="liAmount" />

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<%@ Master Language="C#" %>

<%@ Register Src="MyUserControl.ascx" TagName="MyUserControl" TagPrefix="uc1" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <asp:ContentPlaceHolder ID="head" runat="server">
    <form id="form1" runat="server">
        <uc1:MyUserControl ID="MyUserControl1" runat="server" />
        <br />
        <asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">

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<%@ Page Title="" Language="C#" MasterPageFile="~/MasterPage.master" %>

<script runat="server">

    protected void Button1_Click(object sender, EventArgs e)
        UserControl myControl = (UserControl)this.Master.FindControl("MyUserControl1"); 
        ((Label)myControl.FindControl("liAmount")).Text = Environment.TickCount.ToString();

<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
    <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Set Value" />

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Or you can download the files from this link:

Author Comment

by:Jesper Christensen
ID: 36913558
Ok i Will try that and get back to you. Thank you so far :))

Author Comment

by:Jesper Christensen
ID: 36915567
Whank you, it works perfectly !!

This was just what I was looking for:
UserControl myControl = (UserControl)this.Master.FindControl("MyUserControl1");
((Label)myControl.FindControl("liAmount")).Text = Environment.TickCount.ToString();

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